Overview
The LTC2481HDD#PBF is a high-precision analog-to-digital converter (ADC) produced by Analog Devices Inc. This 16-bit delta-sigma ADC is designed with patented Easy Drive technology and an I²C digital interface. It is particularly suited for applications requiring high DC accuracy and the ability to handle large external source impedances.
The device features a unique sampling scheme that eliminates dynamic input current errors, allowing for direct digitization of input signals with rail-to-rail input range. It also includes on-chip programmable gain and an oscillator, making it versatile for various measurement tasks.
Key Specifications
| Parameter | Description |
|---|---|
| Resolution | 16-bit |
| Converter Type | Delta-Sigma (ΔΣ) ADC |
| Interface | I²C |
| Input Range | Rail-to-rail (0V to VCC) |
| Programmable Gain | 1 to 256 in 8 steps |
| Oscillator | On-chip trimmed oscillator |
| Package | 10-Lead DFN (3mm x 3mm w/ EP) |
| Operating Temperature | -40°C to 85°C (H-grade) |
Key Features
- Patented Easy Drive Technology: Eliminates dynamic input current errors, allowing large external source impedances and input signals to be directly digitized while maintaining exceptional DC accuracy.
- Programmable Gain: Configurable gain from 1 to 256 in 8 steps through the I²C interface.
- On-Chip Oscillator: Eliminates the need for external crystals or oscillators, ensuring absolute accuracy and low drift through continuous calibration.
- Line Frequency Rejection: Can reject line frequencies (50Hz, 60Hz, or simultaneous 50Hz/60Hz) and includes a 2x speed-up mode.
- Temperature Sensor: Can digitize an external signal or internal temperature sensor.
Applications
- Precision Measurement Systems: Ideal for applications requiring high DC accuracy, such as precision voltage and current measurements.
- Industrial Automation: Suitable for use in industrial control systems, sensors, and data acquisition systems.
- Medical Devices: Can be used in medical equipment that requires precise analog-to-digital conversion.
- Aerospace and Defense: Applicable in various aerospace and defense applications where high precision and reliability are critical.
Q & A
- What is the resolution of the LTC2481HDD#PBF ADC?
The LTC2481HDD#PBF has a 16-bit resolution.
- What type of converter is the LTC2481HDD#PBF?
The LTC2481HDD#PBF is a delta-sigma (ΔΣ) analog-to-digital converter.
- What interface does the LTC2481HDD#PBF use?
The LTC2481HDD#PBF uses an I²C digital interface.
- What is the input range of the LTC2481HDD#PBF?
The input range is rail-to-rail (0V to VCC).
- Does the LTC2481HDD#PBF have programmable gain?
Yes, the gain is programmable from 1 to 256 in 8 steps through the I²C interface.
- Does the LTC2481HDD#PBF require an external oscillator?
No, it has an on-chip trimmed oscillator.
- What is the package type of the LTC2481HDD#PBF?
The package type is a 10-Lead DFN (3mm x 3mm w/ EP).
- What is the operating temperature range of the LTC2481HDD#PBF?
The operating temperature range is -40°C to 85°C (H-grade).
- Can the LTC2481HDD#PBF reject line frequencies?
Yes, it can reject line frequencies (50Hz, 60Hz, or simultaneous 50Hz/60Hz) and includes a 2x speed-up mode.
- Can the LTC2481HDD#PBF digitize an internal temperature sensor?
Yes, it can digitize an external signal or an internal temperature sensor.
